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Zero Two K64 battle.png
Kirby and Ribbon against 0², as seen in The Crystal Shards.
First game Kirby 64: The Crystal Shards
Other game(s) Kirby Star Allies
Weakness(es) Ribbon's Crystal
Relative(s) Zero, Dark Matter, Miracle Matter
Similar to Star Dream, Void Termina, Void Soul, Void
Enemy Info Card K64 Enemy Info Card 9.png

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(Zero-Two) is the mastermind and Final Boss behind the events of Kirby 64: The Crystal Shards, fought in the Dark Star. It is a zombified version of Zero from Kirby's Dream Land 3, but it is not the same character. Collecting all Crystal Shards before the Miracle Matter battle is required to meet 0², or it will enter the False Ending.

Physical Appearance

0², judging by its name and appearance, appears to be the same being from Kirby's Dream Land 3. However, there are differences.

First, 0² has a halo and a pair of wings, which may mean Zero and 0² are the same eyeball. Also, 0² has a cactus-like appendage on its underside, as well as a bandage under its halo. This is where its eye was before Zero tore it out in a last-chance attempt to get rid of Kirby in Kirby's Dream Land 3. 0² also releases blood, when its new eye is hit, making 0² and Zero the most maturely depicted bosses in the whole series. Its halo and wings may suggest that 0² is a reincarnation or angelic form of Zero.

Boss Battle

Attacking 0²'s underside (above), and the explosion upon defeat (below).

0² has only two forms of attack: firing explosive orbs from its eye, and releasing green gas when its underside is out.

0² does not start out directly damageable; it must be stunned by striking its eye. Then, Kirby and Ribbon can fly to its halo and shoot it until it vanishes and the bandage is struck. From there, either the wings or the "tail" can be hit.

If the wings are shot, they slow 0² to the point that the halo can be struck without the need for stunning 0². However, the "tail" must be attacked to damage 0². After a while, the "tail" retracts, and after enough damage is done, 0² explodes with Dark Star.

If the player pauses the game during 0² battle, the "Try Again" option (which functions the same as "Quit" in other games) will be replaced by "Tough It Out!" (がんばる in the Japanese version) so the player cannot quit the battle. If the “Tough It Out!” button is pressed, it will have the same effect as the “Continue” button.


Main article: 0² Battle

The boss battle theme of 0² is composed by Jun Ishikawa and titled 0² Battle. The original track can be found as Music 31 in the Sound Check mode of The Crystal Shards.

This theme has been remixed in Super Smash Bros. Brawl, and the Brawl remix has later been reused in Super Smash Bros. for Nintendo 3DS / Wii U and Super Smash Bros. Ultimate.

Cameo Appearances


0²'s strange face before the fight starts.
  • Kirby has 2 Extra Lifes every time he begins the main game in Kirby 64: The Crystal Shards, somehow referencing 0² itself.
  • If the ZL or ZR buttons are pressed during the fight in the Virtual Console version, the camera will rotate.
  • Although it may be possible to construe the blood that splurts from Zero and 0² as merely red energy blobs, both the ending credit illustration of 0² in Kirby 64: The Crystal Shards and the game's ESRB rating in Kirby's Dream Collection confirm it as blood.
  • Before the fight with 0² begins, the boss briefly shows a strange less-threatening face, with two black dots for eyes and the closed main eye serving as a smiling mouth. Why it briefly looks like this before changing to its look during the fight is unknown.
    • This same face would be referenced much later by Void Termina and Void Soul during their Soul phases. As Void, Void Soul makes the face in his pause screen.
  • The "Continue / Tough It Out!" options from the pause screen of 0² battle is parodied in Episode 13 (Vermilion Bird ver.) of the anime Pop Team Epic.